En una lata de atún en conserva hay unos 65 g de atún. Si cada 100 g de ese atún contienen 0,045 mg de mercurio, calcula cuántas latas de ese atún te puedes comer a la semana sin peligro.

Suppose a force of 60 n is required to stretch and hold a spring 0.1 m from its equilibrium position. a. assuming the spring obeys hooke's law, find the spring constant k. b. how much work is required to compress the spring 0.5 m from its equilibrium position? c. how much work is required to stretch the spring 0.6 m from its equilibrium position? d. how much additional work is required to stretch the spring 0.1 m if it has already been stretched 0.1 m from its equilibrium? a. kequals 600